Perhaps you should try some spelling variations:
tranh hang » trinh han, tran hoang, tran hong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hang cong » dang cong, hang nong, bang cong
cong cong » cong dong, trong cong, dung cong
phap phan » phap phat, phap hoan, phap luan
toc hieu » toc thieu, doc hieu, hoc thieu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc hieu manh - canh tranh hang cong cong ((phap phan) or (kham pha)) bi~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu manh - canh tranh hang cong cong ((phap phan) OR (kham pha)) bi*.